List of featured suppliers of SEALANTS Mastic: by Special Function: Fire Resistant BS 476:1987 Part 20 on Building Products Index
Sealants and mastic that are designed for fire resistance must conform to the BS 476:1987 Part 20 standard. These products are specially formulated to prevent the spread of fire by sealing gaps and joints in buildings. Typically, they are applied around doors, windows, and other openings in fire-rated walls and floors to maintain the integrity of the fire barrier. These sealants and mastics are essential for ensuring the safety of occupants in a building in the event of a fire.